telescopecomparison · 2-way
Takahashi Epsilon-180ED vs Takahashi Epsilon-130D
Takahashi
Epsilon-180ED
Best suited for beginners and wide-field enthusiasts running a permanent observatory setup.
Takahashi
Epsilon-130D
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.
Key differences
+16% focal length
+38% aperture
Faster by 0.5 f-stops
Specifications
| Specification | Takahashi Epsilon-180ED | Takahashi Epsilon-130D |
|---|---|---|
| Optics | ||
| Type | astrograph | astrograph |
| Optical design | Hyperbolic Newtonian | Hyperbolic Newtonian |
| Aperture | 180mm | 130mm |
| Focal length | 500mm | 430mm |
| Native f/ratio | f/2.8 | f/3.3 |
| Image circle | 44mm | 44mm |
| Full-frame support | Yes | Yes |
| Physical | ||
| Weight | 12.5kg | 7.8kg |
Advantages of Takahashi Epsilon-180ED
- Tighter framing — 500mm vs 430mm focal length
- 38% more light-gathering aperture
- Faster optics at f/2.8 vs f/3.3
Advantages of Takahashi Epsilon-130D
- Wider field — 430mm vs 500mm focal length
- Lighter (7.8kg vs 12.5kg) — easier to travel with
Best for — Takahashi Epsilon-180ED
- Large emission nebulae and star clusters
- Fast imaging — short exposures per sub
- Full-frame astro cameras and DSLRs
Best for — Takahashi Epsilon-130D
- Large emission nebulae and star clusters
- Fast imaging — short exposures per sub
- Full-frame astro cameras and DSLRs
Takahashi Epsilon-180ED — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.13° × 2.75°Scale: 1.55"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 2.69° × 1.80°Scale: 1.55"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.29° × 1.29°Scale: 1.55"/px
Takahashi Epsilon-130D — typical FOV & scale
- With Full-frame (36×24mm, 3.76µm)FOV: 4.80° × 3.20°Scale: 1.80"/px
- With APS-C (23.5×15.7mm, 3.76µm)FOV: 3.13° × 2.09°Scale: 1.80"/px
- With IMX533 square (11.3×11.3mm, 3.76µm)FOV: 1.51° × 1.51°Scale: 1.80"/px
Takahashi Epsilon-180ED — recommended user
Best suited for beginners and wide-field enthusiasts running a permanent observatory setup.
Takahashi Epsilon-130D — recommended user
Best suited for beginners and wide-field enthusiasts running a backyard imaging setup.